A rural principal arterial is expected to carry an ESAL of 0.188×10° during the first year of operation with an expected annual growth of 6% over the 20-year design life. If the subgrade has resilient modulus of 15,000 psi, design a suitable pavement consisting of a granular subbase with a layer coefficient of 0.13, a granular base layer with a layer coefficient of 0.14, and an asphalt concrete surface with an elastic modulus of 400,000 psi. Assume all m; values 1 and the percent of traffic on the design lane is 47%. Use reliability level of 99%, standard deviation of 0.4, and APSI of 2.0. If the minimum required thickness of asphalt surface and aggregate base course is used, what is the design thickness of subbase? =
A rural principal arterial is expected to carry an ESAL of 0.188×10° during the first year of operation with an expected annual growth of 6% over the 20-year design life. If the subgrade has resilient modulus of 15,000 psi, design a suitable pavement consisting of a granular subbase with a layer coefficient of 0.13, a granular base layer with a layer coefficient of 0.14, and an asphalt concrete surface with an elastic modulus of 400,000 psi. Assume all m; values 1 and the percent of traffic on the design lane is 47%. Use reliability level of 99%, standard deviation of 0.4, and APSI of 2.0. If the minimum required thickness of asphalt surface and aggregate base course is used, what is the design thickness of subbase? =
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A rural principal arterial is expected to carry an ESAL of 0.188×106 during the first year of
operation with an expected annual growth of 6% over the 20-year design life. If the subgrade has
resilient modulus of 15,000 psi, design a suitable pavement consisting of a granular subbase with
a layer coefficient of 0.13, a granular base layer with a layer coefficient of 0.14, and an asphalt
concrete surface with an elastic modulus of 400,000 psi. Assume all m; values = 1 and the
percent of traffic on the design lane is 47%. Use reliability level of 99%, standard deviation of
0.4, and APSI of 2.0. If the minimum required thickness of asphalt surface and aggregate base
course is used, what is the design thickness of subbase?
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